SMM310 Infineon Technologies Corporation, SMM310 Datasheet - Page 7

• Manufacturer Part Number: SMM310
• Description: Silicon Mems Microphone
• Manufacturer: Infineon Technologies Corporation

Figure 4
Figure 5
Data Sheet
-39
-40
-41
-42
-43
-44
-45
1.4 1.7
Typical measurement of sensitivity, equivalent noise level, current consumption and DC
output voltage over power supply
Typical total harmonic distortion over sound pressure level (1 kHz,
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2
1
0
90
2
Equivalent
Noise
V
2.3 2.6 2.9 3.2
DD
[V]
Sensitivity
100
32.5
31.5
30.5
29.5
28.5
27.5
26.5
V
Sound Pressure [dB SPL]
DD
7
110
90
85
80
75
70
65
60
1.4 1.7 2 2.3 2.6 2.9 3.2 3.5
DC Output
Voltage
Current
Consumption
V
120
DD
Silicon MEMS Microphone
[V]
V
DD
=2.1 V)
V1.0, 2007-08-31
SMM310
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
130